"Initially when you get into all of this sort of stuff it's a lot hard work because you've got to change your mindset, you've got to change your machinery," he said.

"But after it's been going for a few years and you've built up the organic matter and the life in your soil and on your farm, things become much easier.

"When you've got a healthy plant you don't have the troubles of a normal conventional system."

Mr Mason says the herbal preparations are cheap and applied just like regular mulch or compost.

"I sort of describe it to people as 'if you walk into a rainforest and you dig down into the earth and you find that sort of composty, mulchy sort of layer and sniff that, it's a bit like that'... it's full of good bacteria and microbes and fungus.

"Some of the unusual things we do we actually stir it in water for about an hour.

"What that's doing is putting rhythm but it's also oxidising the water.

"By stirring this for an hour we're actually increasing the life forms in this mixture, and then we're flicking that out onto the earth or the soil and we're only trying to get one drop per one square metre maybe, done at the right time of the day and the right time of the month."

Alan Johnstone makes the special preparations for Biodynamic Agriculture Australia.

He says it can take about three years for a conventional farm to transition to biodynamics.

"The main thing to do is to start reducing their dependence on chemical pesticides, herbicides and fertilisers.

"And you can do that by substituting organic ones," he said.

"In the end with your biodynamic farm it should be a self sustaining farm organism, in other words you should be able to make all your own fertilisers on farm by recycling things on your farm like manure and mulch and that sort of thing... you shouldn't have buy anything in from outside."